yeah being fast comes with an advantage, but also being a slow learner doesn't mean one is not as brilliant as someone who may grasp something faster. The truth is the main difference between these two is time. If someone who is slow gives in the time and effort towards the same task. He may even understand it better than someone who may have picked it up faster.

I do not totally disregard that fast learning is not advantage but at the same time being slow at learning and taking time to break down the concept is of greater advantage than just memorising the concept without having a deep understanding of how it works.